1230 Power Supply
Contents
1. Q n a 200 V n a 17 78 18 7 Q 220 V n a 21 51 22 6 Q 230 V 33 06 34 71 Q 23 51 24 7 Q 240 V n a 25 60 26 9 Q n a not available Jun 2001 Electrical 9 of 10 Agilent 6890 Gas Chromatograph Service Manual 1230 Power Supply Testing resistance of the heater coil 10 of 10 Electrical Jun 2001 Agilent 6890 Gas Chromatograph Service Manual2. rms nos XFRMR 120A 3 BLK YEL 120V GRAY WHITE Commonly grounded 4 on Main Board 42 V rms nos 3 ORANG XFRMR_08 6 A BLK GRNOV YELLOW XFRMR_100B 7 LK BLU100V V rms nos XFRMR 110B 8 LK WHT10V 0424 V rms nos 9 LK RED120V 1208 p is Le OVEN FAN MOTOR ASSEMBLY FAN_YELLOW YELLOW 2 z A FAN BLUE OVN FAN 1 E EE ORANGE 4 OVEN ae i HEATER MT hi gt lt Mi P Pio G 8 of 10 Electrical Jun 2001 Agilent 6890 Gas Chromatograph Service Manual Power Supply 1230 Testing resistance of the heater coil Testing resistance of the heater coil If you believe that your heater coil is cracked or otherwise damaged and has caused an open circuit you can check it by measuring its resistance To measure the resistance l Turn the instrument power off 2 Disconnect the oven heater leads P3 P4 from the AC power board 3 Use an ohmmeter to measure resistance at the connectors Acceptable resistance ranges in ohms are given below Acceptable resistances range from the nominal value for a new cold heater to 5 from the nominal value Note Resistance goes up approximately 3 after heating the coil Table 1230 5 of the Heater Coil Nominal cold heater resistances Standard oven Fast ramp oven 1600 VA 2250 VA 120V 9 07 9 52
3. 1230 Power Supply Setting the instrument power configuration There are seven possible line voltage power configurations for the 6890 GC Table 1230 1 Voltage Configuration Information Voltage Frequency Maximum power Power line requirement Oven type 71096 4 596 Hz consumption VA 120 V 48 66 2 250 20 amp dedicated Regular receptacle 200 V 48 66 2 950 15 amp dedicated Fast heating receptacle 208 V 48 66 2 950 15 amp dedicated Fast heating receptacle 220 V 48 66 2 950 15 amp dedicated Fast heating receptacle 230 V 48 66 2 250 10 amp dedicated Regular receptacle 230 V 48 66 2 950 16 amp dedicated Fast heating receptacle 240 V 48 66 2 950 13 or16 ampdedicated Fast heating receptacle To change the power configuration for the instrument you must install the appropriate types of the following components e Line voltage configuration plug e Ceramic fuses on the AC power board e Oven shroud assembly These three components are explained in the following topics Jun 2001 Flectrical 1 of 10 Agilent 6890 Gas Chromatograph Service Manual 1230 Power Supply Setting the instrument power configuration Line voltage configuration plug There is a different line voltage configuration plug on the AC power board for each power configuration Each configuration uses three or five jumper wires each connecting to two different pins on the plug The 120 VAC configuration uses five jumper w
4. cuit boards in the instrument These connectors are used for communications within the instrument All connector pinout drawings are viewed from the component side of the board Main board interface Oven triac Oven fuses Main power connector connectors fuses Oven heater connectors Transformer connector Configuration Oven fan Line1 Line 2 Neutral jumper plug connector Black Brown White Blue some AC power boards the oven triac is mounted directly onto the AC board while on others it mounts on the GC through a cutout in the AC board Both configurations are the same electrically Figure 1230 1 power board overlay part no G1530 60050 Jun 2001 Electrical 5 of 10 Agilent 6890 Gas Chromatograph Service Manual 1230 Power Supply AC power board connectors J1 Transformer Power transformer connector assembly Pin Function Wire color 1 NC NC 2 Line 1 Transformer 0A Black Orange 3 Transformer 100A Black Yellow 4 Transformer 120A Black 5 NC NC 6 Transformer 0B Black Green 7 Transformer 100B Black Blue 8 Transformer 110B Black White 9 Transformer 120B Black Red P7 Motor Oven fan connector assembly Pin Function Wire color 1 NC NC 2 Fan Yellow 3 Fan Blue 4 Oven Fan Brown 5 MT1 Fan White 6 Fan Orange P9 Main board interface connector Pin Function 1 Oven relay 2 Oven triac 3 24V 4 Oven
5. g oven shrouds Configuration plug part no G1530 60690 G1530 60720 Voltage Shroud part no Configuration plug part no 200 V G1530 61620 G1530 60700 208 V G1530 61630 G1530 60710 220 V G1530 61630 G1530 60710 230 V G1530 61650 G1530 60720 240 V G1530 61640 G1530 60730 Jun 2001 Electrical 3 of 10 Agilent 6890 Gas Chromatograph Service Manual 1230 Power Supply Replaceable AC board fuses Replaceable AC board fuses There are four fuses on the AC power board two glass fuses are identical for all power options e Thetwo ceramic fuses come in two types one for the 120 V power option and another type for all other power options When replacing both the glass and ceramic fuse types always replace them in pairs Table 1230 4 Replaceable Fuses the AC Power Board I D Description System Power rating Part no F1 Ceramic Type F Oven heater 120 V systems 20A 250 V 2110 0098 200 V 240 V systems 15A 250 V 2110 0054 F2 Ceramic Type F Oven heater 120 V systems 204 250 V 2110 0098 200 V 240V systems 15A 250 V 2110 0054 F3 Glass Type F All other systems 8A 250 V 2110 0036 except heater F4 Glass Type F All other systems 8A 250 V 2110 0036 except heater 4 of 10 Electrical Jun 2001 Agilent 6890 Gas Chromatograph Service Manual Power Supply 1230 AC power board connectors AC power board connectors The following tables are the pinouts for the internal connectors on the main cir
6. ires and all other configurations use three jumper wires Table 1230 2 Line Voltage Configuration Plugs P8 on AC board by Power Option and Diagram of Pinouts from the Top of the Plug Jumper locations for power configuration plug 120 200 208 220 230 240 VAC 3 2 9 VAC Transformer 3 lt 13 2e 13 3 13 5e 13 3013 E 6615 612 612 69 669 9614 1 Ovenfan 1610 164 194 tos 4 13 4 lt 8 Ceramic fuses The two ceramic oven heater fuses on the AC power board F1 F2 will be one of two types depending on the line voltage e for the 120 V power option e One for all other power options These fuses should always be replaced as a pair Power option Fuse rating 120 V 20A 250 V Type F 200 V 240 V 154 250 V Type 2 of 10 Electrical Jun 2001 Agilent 6890 Gas Chromatograph Service Manual Power Supply 1230 Setting the instrument power configuration Oven shroud There are two different oven shrouds depending on the power option used The oven shroud contains the oven heater and sensor as part of the assembly If you need to replace the heater or sensor you should replace the entire shroud assembly See Replacing the oven shroud assembly in the Oven and Temperature Control chapter for more details Table 1230 3 Part Numbers for Oven Shrouds and Configuration Plugs Regular oven shrouds Voltage Shroud part no 120 V G1530 61610 230 V G1530 61670 Fast rampin
7. triac 5 Oven relay 6 of 10 Agilent 6890 Gas Chromatograph Service Manual Jun 2001 Power Supply 1230 AC power board circuitry AC power board circuitry LM1 XFRMR 0A 1 4 250 Fast acting p n 2110 0036 Actuated by Glass body push rod from front of unit Line 1 Black Brown Line ven circuit voltage Fuse rating p n 120V 20A 250 VAC 2110 0094 200 240 15 250 VAC 2110 0054 AC LINE INPUT All fuses EC 127 TYPE F fast acting Ceramic Body Line 2 Neutral P2 White Blue pem LI D t Primary circuits t Secondary circuity Main board interface PS Oven fly Oven triac Oven triac Oven fly Secondary circuifs Primary circuits Jun 2001 Electrical 7 of 10 Agilent 6890 Gas Chromatograph Service Manual 1230 Power Supply AC power board circuitry AC power board circuitry continued Y LINE VOLTAGE CONFIGURATION CONNECTOR amp l l of er eezr 5 2 2 shown configured for t e 5 e 120 VAC operation POWER TRANSFORMER ASSEMBLY o z 5 5 PME al AEN E Eel l zE Secondaries al z 3 2 2 gt E Zlals E Violet Orange Heater Power S Sel Sel E Se Se SE Se S SIS ISL SIS Yellow Yellow dc Supplies LNI XFRMR 1 OV 8 VIOLET 2 LEE ELIT i Spots M e
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